Desk



FIG. 1 is a perspective view of a desk, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear side view thereof; and

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a left side view thereof.

The portions of the desk shown in broken lines form no part of the claimed design. 

CLAIM I claim the ornamental design for a desk, as shown and described. 